No need. No offense I know you mean well, but this sounds like the NFL, keep adding rules on top of existing rules until all you have is one big clusterfukk. It's simple,
MUST BE SBR PRO to enter. Not 10 weeks, 6 weeks, 2 weeks in but prior to contest start date. Eliminates freerolls, scammers, multi-accounts. Lower the prize pool if need be. You want to generate traffic/new signups? Announce the contest 2 to 3 months beforehand, that's ample time for newbies to sign up for pro status. They miss the deadline, see you next year. The majority of these "posters" will disappear soon as the season ends anyway. Simple and effective.
Make me NFL commissioner and I'll fix that shit show too